The Sub-arcsecond Structure Of The Upper Chromosphere: Results From The 2nd Flight Of The Nrl Vault Sounding Rocket Payload

Details The Sub-arcsecond Structure Of The Upper Chromosphere: Results From The 2nd Flight Of The Nrl Vault Sounding Rocket Payload The Sub-arcsecond Structure Of The Upper Chromosphere: Results From The 2nd Flight Of The Nrl Vault Sounding Rocket Payload

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.2901s&link_type=abstract

American Astronomical Society, SPD meeting #40, #29.01; Bulletin of the American Astronomical Society, Vol. 41, p.863

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The Very high Angular resolution ULtraviolet Telescope (VAULT) is an Lya spectroheliograph flown on a sounding rocket. The payload is capable of obtaining Lya filtergrams with a spatial resolution of around 0.33'' ( 200 km) over an extended field of view (535'' x 235'') . The instrument is tuned to the Ly-a line because it forms at the boundary of the upper chromosphere low corona. On its last flight, on 14 June 2002, VAULT observed an area around NOAA AR 9997 & 9998 with a rich variety of features: quiet Sun network, limb spicules, filaments, prominences and plage.
The observing campaign incorporated a wide variety of ground-based and space-borne instruments. The level 0.9 VAULT data is open and available from http://wwwsolar.nrl.navy.mil/rockets/vault .We have recently releseased SolarSoft-compatible software for easy access and processing of the data.
This contribution showcases the data capabilities and availability. We present contrast-enhanced images by means of wavelet image processing. The images reveal in extraordinary detail the dynamics of the smallest solar scales (200-300 km). We observe flows along thin threads on the prominence, exploding events on the plage and even in the quiet sun regions.

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